1/* 2 * Copyright (c) 2011 The LibYuv project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#ifndef INCLUDE_LIBYUV_CPU_ID_H_ 12#define INCLUDE_LIBYUV_CPU_ID_H_ 13 14namespace libyuv { 15 16// These flags are only valid on x86 processors 17static const int kCpuHasSSE2 = 1; 18static const int kCpuHasSSSE3 = 2; 19 20// These flags are only valid on ARM processors 21static const int kCpuHasNEON = 4; 22 23// Internal flag to indicate cpuid is initialized. 24static const int kCpuInitialized = 8; 25 26// Detect CPU has SSE2 etc. 27bool TestCpuFlag(int flag); 28 29// For testing, allow CPU flags to be disabled. 30// ie MaskCpuFlags(~kCpuHasSSSE3) to disable SSSE3. -1 to enable all. 31void MaskCpuFlags(int enable_flags); 32 33} // namespace libyuv 34 35#endif // INCLUDE_LIBYUV_CPU_ID_H_ 36